Race Condition Vulnerability in ubifs Package
Summary
GSD-2021-1001359: ubifs: Fix races between xattr_{set|get} and listxattr operations. Affects Kernel versions >= 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d, < 7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08. No fix is published. How to fix ↓
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Background
The ubifs package is a file system designed for use on flash devices. It is a part of the Linux Kernel ecosystem. The package provides features such as compression, encryption, and wear-leveling to optimize the usage of flash storage. However, a race condition vulnerability has been identified in the xattr_{set|get} and listxattr operations of ubifs.
Vulnerability Detail
The race condition vulnerability in ubifs arises due to improper synchronization between xattr_{set|get} and listxattr operations. This vulnerability can be exploited by an attacker to cause unexpected behavior or potentially escalate privileges. The vulnerability was introduced in version v2.6.27 of the Linux Kernel and has been fixed in version v5.4.133 by commit 7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, the race condition vulnerability in ubifs can be mitigated by updating the Linux Kernel to version v5.4.133 or later. It is important to stay updated with the latest security patches to ensure the integrity and security of the system. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
ubifs is a file system designed for use on flash devices. It provides features such as compression, encryption, and wear-leveling to optimize the usage of flash storage.
A race condition vulnerability occurs when multiple processes or threads access shared resources concurrently, leading to unexpected behavior or security issues.
The race condition vulnerability in ubifs can be exploited by an attacker to cause unexpected behavior or potentially escalate privileges.
Yes, the vulnerability has been fixed in version v5.4.133 of the Linux Kernel.
You can find more information about this vulnerability in the vulnerability database maintained by the Cloud Security Alliance: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001359.json
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